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The Royal Artillery Band will march out of the barracks in Woolwich for the last time today. The band is moving to Tidworth in Wiltshire in April. It has been based in Woolwich for almost all of its 252 years. It will mark the occasion with one last performance in General Gordon Square.

Boris Johnson has announced that the military personnel who have been brought in to protect the Olympics and Paralympics will get free use of public transport. Personnel who are wearing their uniforms will be allowed to use Transport for London services without being charged.

The military insists that it is keeping disruption to a minimum, as it stages a training exercise in the skies of London ahead of the Olympics.

Fighter jets and military helicopters will be operating above the capital, so that pilots become familiar with the airspace.

They will also be testing procedures used to intercept and communicate with aircraft breaching restricted airspace.

Air Vice-Marshal Stuart Atha, Air Component Commander for Olympics Air Security said:

“We have sought to limit the amount of flying to the minimum required to ensure that our Forces are ready for their important role delivering air security for the Olympics, balancing this against the need for us to reduce disturbance to a minimum.

"But we hope that people will understand the need for this very important training, and we thank them for their continued strong support.”

– Air Vice-Marshal Stuart Atha, Air Component Commander for Olympics Air Security

A campaign group says that Londoners will feel less secure as a result of a military training exercise taking place in the capital. Snipers, pilots and missile operators are being trained in preparation for the 2012 Olympics.

"This military presence in the city is unacceptable. Far from safeguarding Londoners as they go about their daily lives, they will bring a real fear of explosions and the prospect of these places becoming a target for terrorist attack.

"These manoeuvres taking place create a climate of fear in the city, and allow a future military presence to be established more easily.

"If the Olympic park needs security, this should be within the confines of the park and not forced on ordinary people in east and south London who have no say in the matter."